It depends how worn and corroded it is. It will be either a penny (weighing 1 ounce) or a twopence (2 ounces).
For more information see the values pages at the related link.
Whats that ?
It is not recommended to use muriatic acid to clean copper, as it can cause damage to the copper surface and potentially lead to discoloration. It is safer to use a specific copper cleaner or a mixture of vinegar and salt to clean copper surfaces effectively.
Copper oxides are soluble in acids.
No, placing dirty copper in distilled water will not clean it. To clean dirty copper, you may need to use specific cleaning agents or methods such as a mixture of vinegar and salt, or a commercial metal cleaner.
how do you get to the carborator and then whats the process to clean it.
Clean water
The baking soda solution can be used to clean silver over copper from Andhra Pradesh.
You can clean an antique copper faucet. However, you may not want to. If you clean the piece it could lose its patina which takes away from its value. If you do clean it, use soap and water and be gentle.
Copper can be cleaved to form clean surfaces by mechanical cleaving or by using strong acids or bases to etch the material. Cleaving is often done to prepare samples for microscopy or other types of analysis that require a clean surface. After cleavage, the freshly exposed surface may oxidize quickly in air.
Vinegar will do it.
Read, clean,
With a good quality brass /copper cleaner like Never Dull